CVE-2010-2951

MEDIUM
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Description

dns_internal.cc in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid socket during an IPv4 TCP DNS query, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors that trigger an IPv4 DNS response with the TC bit set.

References

http://bazaar.launchpad.net/~squid/squid/3.1/revision/10072

http://bugs.gentoo.org/show_bug.cgi?id=334263

http://bugs.squid-cache.org/show_bug.cgi?id=3009

http://bugs.squid-cache.org/show_bug.cgi?id=3021

http://marc.info/?l=squid-users&m=128263555724981&w=2

http://www.openwall.com/lists/oss-security/2010/08/24/6

http://www.openwall.com/lists/oss-security/2010/08/24/7

http://www.openwall.com/lists/oss-security/2010/08/25/2

http://www.openwall.com/lists/oss-security/2010/08/25/6

http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch

https://bugzilla.redhat.com/show_bug.cgi?id=626927

Details

Source: MITRE

Published: 2010-10-12

Updated: 2010-10-13

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:squid-cache:squid:3.1.6:*:*:*:*:*:*:*

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
56658GLSA-201110-24 : Squid: Multiple vulnerabilitiesNessusGentoo Local Security Checks
medium
801040Squid 3.1.6 DNS Replay Denial of ServiceLog Correlation EngineWeb Servers
medium
5666Squid 3.1.6 DNS Replay DoSNessus Network MonitorWeb Servers
medium
48433Squid 3.1.6 DNS Reply Denial of ServiceNessusFirewalls
medium